1242759204 has 36 divisors (see below), whose sum is σ = 3170787984. Its totient is φ = 410380272.

The previous prime is 1242759181. The next prime is 1242759209. The reversal of 1242759204 is 4029572421.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1242759209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157462 + ... + 165165.

It is an arithmetic number, because the mean of its divisors is an integer number (88077444).

Almost surely, 2^1242759204 is an apocalyptic number.

It is an amenable number.

1242759204 is an abundant number, since it is smaller than the sum of its proper divisors (1928028780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242759204 is a wasteful number, since it uses less digits than its factorization.

1242759204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322744 (or 322739 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1242759204 is about 35252.7900172454. The cubic root of 1242759204 is about 1075.1333395807.

It can be divided in two parts, 12427 and 59204, that added together give a triangular number (71631 = T₃₇₈).

The spelling of 1242759204 in words is "one billion, two hundred forty-two million, seven hundred fifty-nine thousand, two hundred four".